CN87103736A - Contact type plasma cutting torch - Google Patents
Contact type plasma cutting torch Download PDFInfo
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- CN87103736A CN87103736A CN87103736.XA CN87103736A CN87103736A CN 87103736 A CN87103736 A CN 87103736A CN 87103736 A CN87103736 A CN 87103736A CN 87103736 A CN87103736 A CN 87103736A
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Abstract
A kind of plasma cutting-torch, particularly contact type plasma cutting torch, its structure have two kinds of the elbow-shaped of the form of a stroke or a combination of strokes.The both is by the cutting torch of the electrode of a kind of spiral groove type of use, improved the ionization effect, improved the type of cooling, the working gas of form of a stroke or a combination of strokes cutting torch can make oxygen into by air, its type of cooling can make single water-cooled or gas-water mixed type into by the pure gas cold type, this has just improved the adaptability of cutting torch to the cutting condition, has enlarged the cutting torch scope of application.It is 0.1～20 millimeter stainless steel, carbon steel that this cutting torch can cut thickness of slab, copper or aluminium below 6 millimeters.
Description
The present invention relates to a kind of plasma cutting-torch, particularly contact type plasma cutting torch.This cutting torch is exclusively used in the cutting metal thin plate.
Existing contact plasma cutting-torch (or welding torch), its electrode structure is generally hollow or solid cylinder, and cutting and chewing (or weldering is chewed) structure is general conical funnel shape (seeing that U.S. Pat 4558201 and Japan Patent spy open clear 58-51791).Kind electrode is chewed the life-span weak point with cutting, and simultaneously, working gas is directly to enter ionisation chamber with tangent-type, so the ionization weak effect, capacity usage ratio is low.A kind of cutting torch generally can only use a kind of working gas, just can only use air or oxygen (to see Japan's " solder technology ", No.10, p29,1983, the Japan Patent spy opens clear 59-229282), relevant therewith, cut the cooling of chewing, can only use air cooling or water cooling (Japan " solder technology " No.8, p15,1986, No.4, p99,1980), this has just limited the scope of application of cutting torch.
The object of the present invention is to provide a kind of capacity usage ratio height, long, applied widely contact type plasma cutting torch of vital part life-span.
Purpose of the present invention is to realize by the contact type plasma cutting torch of following two kinds of structures.
A kind of is form of a stroke or a combination of strokes contact air or oxygen plasma cutting-torch.Its structure is to make general hollow cylinder electrode into spiral groove type hollow cylinder electrode.Improved electrode structure is made up of three parts, and the bottom is the bulb-type small cylinder, and its pommel is embedded with zirconium or hafnium; The middle part is for having the large cylinder of multi-head spiral groove; Top is the smooth cylinder that has internal thread.
This cutting torch will cut to be chewed structure and makes the spiral groove type infundibulate into by general conical funnel shape, and the bottom is band spiral fluted small cylinder, and top is for having toric conical funnel, and its underpart cavity is an ionisation chamber.
Another kind is the elbow-shaped contact type plasma cutting torch, and major part structure and first kind are basic identical.Electrode also is made up of three parts, but top is for having externally threaded cylinder.
Cut also to chew and form, but top is the conical funnel structure that has cylinder by two parts.
Accompanying drawing has been described two kinds of embodiment of the present invention.
Fig. 1. form of a stroke or a combination of strokes contact type plasma cutting torch partial sectional view.
Fig. 2. I among Fig. 1-I part sectioned view.
Fig. 3. II among Fig. 1-II part sectioned view.
Fig. 4. elbow-shaped contact type plasma cutting torch partial sectional view.
Fig. 1 has provided the primary structure of form of a stroke or a combination of strokes contact type plasma cutting torch.This cutting torch by electrode (1), cut and chew (2), cut and chew lid (3), housing (4), spacer (5), guide sleeve (6), cathode rod (7), center tracheae (8), elbow (9), plug (10), insulation sleeve (11), top cover (12), spring (13), spring base (14), turriform joint (15), pneumoelectric cable (having flexible cable in the tracheae) (16) and form.
Electrode (1) is the multi-head spiral groove structure, ventilation type, and the bottom is bulb-type small cylinder (1-a), its pommel is embedded with zirconium or hafnium; The middle part is for having the large cylinder (1-b) of multi-head spiral groove; Top is one to have the smooth cylinder (1-c) of internal thread; One cannelure (1-d) is arranged between top and the middle part, and bottom land has 4～6 radial holes (1-e), and its position is corresponding with helicla flute, as shown in Figure 2.
Cutting and chewing (2) is the spiral groove type funnel structure, and material is a red copper, and the bottom is band spiral fluted small cylinder (2-a), and its center is drilled with the working gas spray-hole; Top is for being with toric conical funnel shape (2-b).
Cut and chew lid (3) and make, be connected with housing (4) with screw thread by copper product or ceramic material.Cut that to chew (2) and cut the toroidal cavity of chewing between the lid (3) be cooling chamber; Toroidal cavity between housing (4) and the copper spacer (5) is cooling water channel or gas circuit; Toroidal cavity between spacer (5) and the ceramic guide sleeve (6) is a cooled gas path; Cannelure (6-a) is arranged at guide sleeve (6) inner chamber top, radial hole (6-b), as shown in Figure 3.The bottom is chewed top and is formed cylinder and be connected (or being threaded) with cutting with a seam (or screw thread); Guide sleeve (6) inner chamber bottom cooperates with the electrode excircle, and top cooperates with cathode rod (7); Copper cathode rod (7) and electrode (1) are for being threaded, and cathode rod (7) inner chamber has center tracheae (8); Housing (4) outer wall top is connected with elbow (9) and plug (10) thereof; Between cathode rod (7) excircle and spacer (5) inner periphery is insulation sleeve (11), and its top is connected with top cover (12) with screw thread; Top cover (12) inner chamber has spring (13) and spring base (14); Spring base (14) is connected with turriform joint (15), pneumoelectric cable (16).
Chew the type of cooling by the working gas kind with cutting, utilize above-mentioned this cutting torch structure, can form five types of cutting torches, i.e. air plasma ventilation type, water-cooled, gas-water mixed type and oxygen plasma ventilation type, water-cooled.
When working gas was air, its gas circuit was: calming the anger enters center tracheae (8) from pneumoelectric cable (16), is divided into two-way then: route electrode (a 1) radial hole (1-e) comes out, and enters ionisation chamber through its middle part (1-b) helicla flute; Then come out by cathode rod (7) radial hole (7-a) in another road; enter annular chamber between spacer (5) and guide sleeve (6) through guide sleeve (6) cannelure (6-a), radial hole (6-b); chew (2) again through cutting and cut the annular chamber of chewing between lid (3); cooling is cut and is chewed (2) after its helicla flute is sprayed onto cuts on the part; both protected to cut and chewed; cooled off again and cut part, also suppressed the diffusion of arc simultaneously.
When the type of cooling need make single water-cooled or gas-water mixed type into by single air cooling, when perhaps working gas need make oxygen into by air, as long as the cutting torch individual part is adjusted a little, be about to plug (10) and unload, on elbow (9), connect water (or gas) source; At spacer (5) with cut to chew and add " o " shape sealing ring between the outer rim of (2) top and get final product.The air water admixture then gets final product by the flow of regulating water.Should " o " shape sealing ring both can prevent to enter to cut to chew (1) and cut the cooling chamber of chewing between lid (3), and also can prevent to enter ionisation chamber from the cooling water of elbow (9) from the oxygen in guide sleeve (6) cannelure (6-a), the radial hole (6-b).
The circuit of this cutting torch is: pneumoelectric cable (16) is connected with power supply, makes to cut to chew with cutting part to contact again, its electric current to (1), can produce high-frequency arc strike through (15), (7), makes working gas ionization.
Fig. 4 provides the primary structure of elbow-shaped contact type plasma cutting torch.Spiral groove type hollow cylinder electrode (1) is made up of three parts: the bottom is spherical small cylinder (1-a), and the pommel is embedded with zirconium or hafnium; The middle part is for having the large cylinder (1-b) of multi-head spiral groove; Top is for having externally threaded small cylinder (1-c); 4～6 radial holes (1-d) are arranged between top and the middle part.
Cutting the bottom of chewing (2) is the small cylinder (2-a) that has multi-head spiral groove; Top is the conical funnel structure (2-b) that has cylinder, and the cylindrical shell external diameter is slightly smaller than the aperture of housing (4).
Chew (2) cylindrical shell and housing (4) endoporus when cutting when being slidingly matched, cut the cylindrical shell of chewing top and have some grooves, the groove position is consistent with guide sleeve (5) radial hole position.
This cutting torch part is formed and annexation is: electrode (1) is connected with adapter sleeve (7) with external screw thread; And adapter sleeve (7) uses external screw thread and housing (4) inner chamber to fix; Adapter sleeve (7) bottom is with spring (6); Pottery guide sleeve (5) endoporus cooperates with electrode (1), and outer circumference surface top cooperates with housing (4), and the bottom is chewed (2) and cooperated with cutting; Center tracheae (8) cooperates with adapter sleeve (7); The upper end of adapter sleeve (7) and center tracheae (8) has packing ring (9), links to each other with soft copper cable (11), pneumoelectric cable (14).(12) be microswitch, (13) are connector.
The cutting torch of said structure only is applicable to the air plasma cutting torch.Its gas circuit is: calming the anger to be entered by pneumoelectric cable (14) is divided into two-way behind the center tracheae (8): the one tunnel enters helicla flute of (1-b) part through electrode radial hole (1-d), to ionisation chamber; Another road enters through guide sleeve (5) radial hole and cuts the gap of chewing between (2) and the housing (4), to cooling chamber, is sprayed onto by (2-a) helicla flute partly and cuts on the part.
Its circuit is: pneumoelectric cable (14) is connected with power supply, makes to cut to chew with cutting part to contact again, its electric current warp (11), (9), (7) can produce high-frequency arc strike to (1), make working gas ionization.
The present invention has following advantage: 1, improved work gas stream road, make work gas directly enter ionisation chamber by the electrode outside with tangent-type, become by the electrode inner chamber and enter ionisation chamber with the convolution of broken line formula, the gas of namely working at first enters the electrode inner chamber through preheating, radially comes out in the hole from it then, enters ionisation chamber through helicla flute again, this has just improved work gas ionization effect and cooling of electrode effect, energy utilization rate height. As when electric current be 50 the peace, when power is 5 kilowatts, general cutting torch can only cut the part that cuts of 13 millimeters thick, the present invention then can cut the part that cuts of 20 millimeters thick. 2, improved the cooling mode, make to cut and chew and can fully be cooled off. Cooling gas or cooling water are the spiral groove channels of chewing lower end by cutting, are sprayed onto and cut on the part. So not only make to cut to chew and improved the cooling effect, prolonged service life, and reduced to cut distortion, heat affected area and the width of slit of part. This cutting torch cuts to be chewed the life-span and can reach more than 4 hours, and can reach more than 5 hours electrode life.
For form of a stroke or a combination of strokes contact type plasma cutting torch, also have an outstanding advantage, can satisfy special cutting condition and requirement in simple mode exactly. Thin plate as when cutting 0.1-6 millimeters thick is Reducing distortion and heat affected area, and is optional with water-cooled or water-fog type plasma cutting-torch; When requiring to cut not nitriding of part, can select the oxygen plasma cutting torch. At this moment, only need installing " o " shape sealing ring between the outer rim of top additional every overlapping inner periphery and cutting to chew, and utilize elbow connection water (gas) source to get final product.
Claims (7)
1, a kind of contact type plasma cutting torch, comprise electrode (1), cut and chew (2), cut and chew lid (3), housing (4), center tracheae (8), it is characterized in that electrode (1) adopts spiral groove type hollow cylinder structure, the bottom is bulb-type small cylinder (1-a), its pommel is embedded with zirconium or hafnium, and the middle part is the large cylinder (1-b) that has multi-head spiral groove, and top is one to have smooth cylinder (the 1 shape groove (1-d) of internal thread, bottom land has a plurality of radial holes (1-e), and its position is corresponding with helicla flute.
2, by the described contact type plasma cutting torch of claim 1, it is characterized in that cutting and chew (2) and adopt the spiral groove type funnel structure, its underpart is the small cylinder (2-a) that has multi-head spiral groove, and its center is drilled with the working gas spray-hole, and top is flanged conical funnel shape (2-b).
3, by the described plasma cutting-torch of claim 2, the top that it is characterized in that electrode (1) is connected with cloudy bar (7), the periphery of electrode (1) cooperates with guide sleeve (6), cannelure (6-a) and radial hole (6-b) are arranged at guide sleeve (6) inner chamber top, cathode rod (7) excircle cooperates with insulation sleeve (11), cathode rod (7) top is connected with top cover (12), top cover (12) inner chamber has spring (13) and spring base (14), and spring base (14) is connected with turriform joint (15), pneumoelectric cable (16).
4, by the described plasma cutting-torch of claim 3, it is characterized in that housing (4) inner chamber has a spacer (5), one elbow (9) that can connect water (gas) source is arranged at housing (4) outer wall top, when making working gas, needs make oxygen into by air, when perhaps needing to make the type of cooling to make single water-cooled or gas-water mixed type into, at spacer (5) with cut and chew between (2) outer rim " o " shape sealing ring of installing by single ventilation type.
5, by the described contact type plasma cutting torch of claim 1, it is characterized in that cutting and chew (2) and adopt the spiral groove type funnel structure, the bottom is the small cylinder (2-a) that has multi-head spiral groove, its center is drilled with the working gas spray-hole, top is the conical funnel body (2-b) that has cylinder, and the cylinder external diameter is slightly smaller than the aperture of housing (4).
6, by the described contact type plasma cutting torch of claim 5, it is characterized in that chewing the cylinder of (2) and housing (4) endoporus when being slidingly matched when cutting, to cut the cylinder of chewing top and have some grooves, the groove position is consistent with guide sleeve (5) radial hole position.
7, by the described contact type plasma cutting torch of claim 6, it is characterized in that housing (4) is an elbow-shaped, electrode (1) is connected with adapter sleeve (7), adapter sleeve (7) bottom is with spring (6), the endoporus of pottery guide sleeve (5) cooperates with electrode (1), the bottom is chewed (2) and is cooperated with cutting, and center tracheae (8) cooperates with adapter sleeve (7), and packing ring (9) is equipped with on the top of adapter sleeve (7) and center tracheae (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87103736 CN1009624B (en) | 1987-05-27 | 1987-05-27 | Contact type plasma cutting torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87103736 CN1009624B (en) | 1987-05-27 | 1987-05-27 | Contact type plasma cutting torch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87103736A true CN87103736A (en) | 1988-12-14 |
| CN1009624B CN1009624B (en) | 1990-09-19 |
Family
ID=4814563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87103736 Expired CN1009624B (en) | 1987-05-27 | 1987-05-27 | Contact type plasma cutting torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1009624B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980588A (en) * | 2010-10-04 | 2011-02-23 | 周开根 | Arc plasma gun |
| CN103097069A (en) * | 2010-09-09 | 2013-05-08 | 亚历山大·宾策尔焊接技术两合公司 | Welding or cutting torch with forced air cooling |
| CN103269558A (en) * | 2013-06-05 | 2013-08-28 | 南京理工大学 | Anode of supersonic plasma torch, and supersonic plasma torch |
| CN104333967A (en) * | 2014-10-27 | 2015-02-04 | 周开根 | Cathode with spiral flow guide structure |
| CN104470187A (en) * | 2014-11-13 | 2015-03-25 | 周开根 | Double-pole electric arc plasma torch used for water pyrolysis |
| CN105519239A (en) * | 2013-09-05 | 2016-04-20 | 特拉菲迈特股份公司 | Plasma torch with improved cooling system and corresponding cooling method |
| CN106041278A (en) * | 2015-04-02 | 2016-10-26 | 黄元奎 | Plasma torch |
| CN111491757A (en) * | 2017-12-18 | 2020-08-04 | 小池酸素工业株式会社 | Device for supplying water flow along plasma cutting torch |
-
1987
- 1987-05-27 CN CN 87103736 patent/CN1009624B/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097069A (en) * | 2010-09-09 | 2013-05-08 | 亚历山大·宾策尔焊接技术两合公司 | Welding or cutting torch with forced air cooling |
| CN103097069B (en) * | 2010-09-09 | 2015-09-30 | 亚历山大·宾策尔焊接技术两合公司 | Have and force air cooled welding torch or cutting torch |
| CN101980588A (en) * | 2010-10-04 | 2011-02-23 | 周开根 | Arc plasma gun |
| CN103269558A (en) * | 2013-06-05 | 2013-08-28 | 南京理工大学 | Anode of supersonic plasma torch, and supersonic plasma torch |
| CN105519239A (en) * | 2013-09-05 | 2016-04-20 | 特拉菲迈特股份公司 | Plasma torch with improved cooling system and corresponding cooling method |
| US10076019B2 (en) | 2013-09-05 | 2018-09-11 | Trafimet S.P.A. | Plasma torch with improved cooling system and corresponding cooling method |
| CN104333967A (en) * | 2014-10-27 | 2015-02-04 | 周开根 | Cathode with spiral flow guide structure |
| CN104470187A (en) * | 2014-11-13 | 2015-03-25 | 周开根 | Double-pole electric arc plasma torch used for water pyrolysis |
| CN104470187B (en) * | 2014-11-13 | 2016-10-05 | 衢州昀睿工业设计有限公司 | A kind of two stage electric arc plasma torch for being pyrolyzed water |
| CN106041278A (en) * | 2015-04-02 | 2016-10-26 | 黄元奎 | Plasma torch |
| CN106041278B (en) * | 2015-04-02 | 2018-09-11 | 黄元奎 | plasma torch |
| CN111491757A (en) * | 2017-12-18 | 2020-08-04 | 小池酸素工业株式会社 | Device for supplying water flow along plasma cutting torch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1009624B (en) | 1990-09-19 |
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| C14 | Grant of patent or utility model | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |